Related Experiment Video
Updated: Feb 23, 2026
08:34
Left Atrial Stenosis Induced Pulmonary Venous Arterialization and Group 2 Pulmonary Hypertension in Rat
Published on: November 18, 2018
7.7K
Partial anomalous pulmonary venous connection in a dog.
Chloe L Thorn1, Naomi R Ford1, Meg M Sleeper1
1University of Pennsylvania, School of Veterinary Medicine, 3800 Spruce Street, Philadelphia, PA 19104, USA.
Summary
A Belgian Malinois with exercise intolerance was diagnosed with partial anomalous pulmonary venous connection and a possible arteriovenous malformation, highlighting complex congenital heart defects in dogs.
Area of Science:
- Veterinary Cardiology
- Congenital Heart Disease in Animals
- Diagnostic Imaging in Veterinary Medicine
Background:
- Congenital heart defects can cause significant health issues in canine patients.
- Accurate diagnosis of complex cardiac anomalies is crucial for effective management.
Observation:
- A 2-year-old Belgian Malinois presented with exercise intolerance and a heart murmur.
- Echocardiography and radiography indicated right heart enlargement and suspected anomalous pulmonary venous connection.
- Further diagnostics including agitated saline study, right heart catheterization, and CT angiography were performed.
Findings:
- Computed tomography angiography confirmed a partial anomalous pulmonary venous connection with a left-to-right shunt.
- A potential small arteriovenous malformation with a right-to-left shunt was also identified.
- Oximetry confirmed shunting within the right atrium.
Implications:
- This case underscores the importance of advanced imaging for diagnosing complex congenital heart anomalies in dogs.
- Understanding these conditions aids in developing targeted treatment strategies.
- Early and accurate diagnosis can improve the prognosis for affected animals.
